Howard Thomas and Martin George Walsh of San Diego

We have a Howard Thomas Walsh and Martin George Walsh, both born in Ionia, Michigan who both eventually moved to San Diego and raised families there. Howard (1904-1980) married Wave and their children were: Leroy, Roger, Donald, Marqueen (Johnson), Kenneth, and Harold. I'm not sure what became of the children. I'm hoping some of them remained in San Diego and raised families, so that I can make contact with them. Howard's brother Martin George Walsh married and had children Robin and Scott. I think Martin eventually moved to Oregon, but I'm not sure if the children remained in San Diego, or not. I am seeking any descendants of these families, or anybody who can teach me more about them.